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Full Discussion: Conditional delete
Top Forums Shell Programming and Scripting Conditional delete Post 303022240 by onenessboy on Wednesday 29th of August 2018 12:53:55 AM
Old 08-29-2018
Quote:
Originally Posted by RudiC
How about


Code:
ls 2018* | sort -ur -k1,1 -t_ | cut -d_ -f1 | while read TS; do echo rm $(ls -r $TS* | tail -n +2); done
rm 20180721_0212.tar.gz 20180721_0112.tar.gz 20180721_0012.tar.gz
rm 20180720_2012.tar.gz 20180720_1912.tar.gz 20180720_1812.tar.gz


Remove the echo when happy with the proposed result.
Thank you Rudic, let me try. my apologies for not including Code tags.






Hi Rudic,


Its working fine. thank you...now i get little bit complicated requirement...

we have a mount point called /backup (300 GB)under which these files will be places every 3 hours...

now if disc space crosses 60 % of /backup and also for example if 90% is filled up in that 300 gb then our logic /program should stop at a point where deletion of files brought down to 60 % (starting from old date )

for example,
if /backup mount reaches 90 % , now it has to brought down to 60 % which is threshold. Now let us assume files are from
Code:
20180701_0112.tar.gz...to 20180831_2112.tar.gz..

now solution should start from 2018-07-01 and start deleting files for that day except last timestamp file per day (your proposed solution is already doing this) and it should continue only till a point where deleting till for example till 2018-07-03 and if this range is enough to disc usage to 60 % then our logic should exit..some thing like...that, next time when again disc cross beyond 60% then, when we run our command it should start from
Code:
2018-07-04

as

Code:
2018-7-01
2018-7-02,
2018-7-03 already has only 1 file per day...

Sorry if my explanation not clear or complicated requirement.. If possible please help . the idea is to not deleting files for all dates, rather limit it till disc usage comes to 60 %
Last edited by onenessboy; 08-29-2018 at 02:15 AM..
 

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LEARN ABOUT DEBIAN

gpodder-backup

GPODDER-BACKUP(1)						   User Commands						 GPODDER-BACKUP(1)

NAME

       gpodder-backup - Backup and restore utility for gPodder user data

SYNOPSIS

       gpodder-backup [--create|--extract] <archive.gpo.tar.gz> [options] gpodder-backup --purge

DESCRIPTION

       This utility can be used to create a dump of the current gPodder data (configuration files + downloads), optionally replacing the real con-
       tents of the download folder with zero-byte files (for submitting your data to a bug report without having to transfer lots of data).

OPTIONS

       --version
	      show program's version number and exit

       -h, --help
	      show this help message and exit

       -c <FILE>, --create=<FILE>
	      Create a new archive

       -x <FILE>, --extract=<FILE>
	      Extract an existing archive

       -f, --fake-downloads
	      Store downloads as zero-byte files in backup

       -n, --no-covers
	      Do not include cover files in archive

       -D <DIR>, --destination=<DIR>
	      Extract downloads in different folder

       -P, --purge
	      Remove current data (can be combined with --extract)

USAGE FOR BUG REPORTING

       This command is useful if you want to report a bug in gPodder:

       gpodder-backup --create bug123.gpo.tar.gz --fake-downloads
	      Backup your current data to file bug123.gpo.tar.gz, but don't store download data (create zero-size dummy files  instead).  You  can
	      then attach bug123.gpo.tar.gz to the bug report.

       If you are instructed to try gPodder from a "clean state", you can use the following command (be sure to backup your data before!):

       gpodder-backup --purge
	      Remove all gPodder data, so you can start from a clean state

EXAMPLES

       gpodder-backup --create today.gpo.tar.gz
	      Backup your current data to file today.gpo.tar.gz

       gpodder-backup --extract mybackup.gpo.tar.gz
	      Restore (without purging) the contents of mybackup.gpo.tar.gz

       gpodder-backup --extract default.gpo.tar.gz --purge
	      Remove current data, then restore the contents of default.gpo.tar.gz

       gpodder-backup --purge
	      Remove all gPodder data, so you can start from a clean state

EXTRACTING FAKED DOWNLOADS

       Please  note  that  any	existing  downloads will be overwritten with zero-byte files when using the --extract option of the gpodder-backup
       utility with a backup created with --fake-downloads

AUTHOR

       gpodder-backup was written by Thomas Perl (thp@gpodder.org)

gpodder-backup 1.0						   December 2010						 GPODDER-BACKUP(1)
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